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KOMATSU PC24MR-5 PC26MR-5 COMPACT HYDRAULIC EXCAVATOR SHOP MANUAL WENBM00380 – PDF DOWNLOAD
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KOMATSU PC24MR-5 PC26MR-5 COMPACT HYDRAULIC EXCAVATOR SHOP MANUAL WENBM00380 – PDF DOWNLOAD
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KOMATSU PC24MR-5 PC26MR-5 COMPACT HYDRAULIC EXCAVATOR SHOP MANUAL WENBM00380 – PDF DOWNLOAD
FILE DETAILS:
KOMATSU PC24MR-5 PC26MR-5 COMPACT HYDRAULIC EXCAVATOR SHOP MANUAL WENBM00380 – PDF DOWNLOAD
Language : English
Pages : 1080
Downloadable : Yes
File Type : PDF
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TABLE OF CONTENTS:
KOMATSU PC24MR-5 PC26MR-5 COMPACT HYDRAULIC EXCAVATOR SHOP MANUAL WENBM00380 – PDF DOWNLOAD
00 INDEX AND FOREWORD.......................................................................................................... 3 INDEX...................................................................................................................... 4 FOREWORD, SAFETY, BASIC INFORMATION........................................................................................ 11 HOW TO READ THE SHOP MANUAL............................................................................................ 11 SAFETY NOTICE FOR OPERATION............................................................................................ 13 PRECAUTIONS TO PREVENT FIRE............................................................................................ 21 ACTIONS IF FIRE OCCURS................................................................................................. 23 PRECAUTIONS WHEN YOU DISPOSE OF WASTE MATERIALS........................................................................ 24 PRECAUTIONS FOR HANDLING HYDRAULIC EQUIPMENT........................................................................... 25 PRECAUTIONS WHEN YOU DISCONNECT AND CONNECT PIPINGS.................................................................... 28 PRECAUTIONS WHEN YOU HANDLE ELECTRICAL EQUIPMENT....................................................................... 35 PRECAUTIONS FOR HANDLING FUEL SYSTEM EQUIPMENT......................................................................... 37 PRECAUTIONS FOR HANDLING INTAKE SYSTEM EQUIPMENT....................................................................... 38 PRACTICAL USE OF KOMTRAX............................................................................................... 39 DISCONNECT AND CONNECT PUSH-PULL TYPE COUPLER.......................................................................... 40 METHOD FOR DISCONNECTING AND CONNECTING TYPE 1 PUSH-PULL TYPE COUPLER.............................................. 40 METHOD FOR DISCONNECTING AND CONNECTING TYPE 2 PUSH-PULL TYPE COUPLER.............................................. 41 METHOD FOR DISCONNECTING AND CONNECTING TYPE 3 PUSH-PULL TYPE COUPLER.............................................. 42 PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF CONNECTORS............................................................. 44 METHOD FOR DISCONNECTING AND CONNECTING DEUTSCH CONNECTOR.............................................................. 48 METHOD FOR DISCONNECTING AND CONNECTING SLIDE LOCK TYPE CONNECTOR...................................................... 49 METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PULL.................................................... 51 METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PUSH.................................................... 52 METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH HOUSING TO ROTATE............................................... 54 STANDARD TIGHTENING TORQUE TABLE....................................................................................... 55 CONVERSION TABLE....................................................................................................... 62 ABBREVIATION LIST...................................................................................................... 67 01 SPECIFICATION............................................................................................................... 71 CONTENTS................................................................................................................... 72 SPECIFICATIONS............................................................................................................. 73 SPECIFICATION DRAWING.................................................................................................. 73 SPECIFICATION DRAWING: PC24MR-5.................................................................................... 73 SPECIFICATION DRAWING: PC26MR-5.................................................................................... 75 WORKING RANGE DRAWINGS................................................................................................. 77 WORKING RANGE DRAWINGS: PC24MR-5................................................................................... 77 WORKING RANGE DRAWINGS: PC26MR-5................................................................................... 78 SPECIFICATIONS......................................................................................................... 79 SPECIFICATIONS: PC24MR-5........................................................................................... 79 SPECIFICATIONS: PC26MR-5........................................................................................... 84 WEIGHT TABLE........................................................................................................... 89 WEIGHT TABLE: PC24MR-5............................................................................................. 89 WEIGHT TABLE: PC26MR-5............................................................................................. 91 FUEL, COOLANT, LUBRICANT............................................................................................... 93 USE FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE.................................................. 93 10 STRUCTURE AND FUNCTION...................................................................................................... 95 CONTENTS................................................................................................................... 96 BOOT-UP SYSTEM............................................................................................................. 98 LAYOUT DRAWING OF BOOT-UP SYSTEM....................................................................................... 98 SYSTEM OPERATING LAMP SYSTEM........................................................................................... 99 SYSTEM DIAGRAM OF SYSTEM OPERATING LAMP SYSTEM..................................................................... 99 FUNCTION OF SYSTEM OPERATING LAMP SYSTEM........................................................................... 99 OPERATION OF SYSTEM OPERATING LAMP SYSTEM.......................................................................... 99 BATTERY DISCONNECT SWITCH.............................................................................................. 101 FUNCTION OF BATTERY DISCONNECT SWITCH.............................................................................. 101 OPERATION OF BATTERY DISCONNECT SWITCH............................................................................. 101 ENGINE SYSTEM.............................................................................................................. 102 LAYOUT DRAWING OF ENGINE SYSTEM........................................................................................ 102 ENGINE CONTROL SYSTEM.................................................................................................. 103 SYSTEM DIAGRAM OF ENGINE CONTROL SYSTEM............................................................................ 103 OPERATION OF ENGINE CONTROL SYSTEM................................................................................. 104 ENGINE SYSTEM.......................................................................................................... 105 PTO................................................................................................................ 105 COOLING SYSTEM............................................................................................................. 106 LAYOUT DRAWING OF COOLING SYSTEM....................................................................................... 106 SPECIFICATIONS OF COOLING SYSTEM................................................................................... 107 CONTROL SYSTEM............................................................................................................. 108 LAYOUT DRAWING OF CONTROL SYSTEM....................................................................................... 108 MACHINE MONITOR SYSTEM................................................................................................. 109 SYSTEM DIAGRAM OF MACHINE MONITOR.................................................................................. 109 FUNCTION OF MACHINE MONITOR SYSTEM................................................................................. 109 KOMTRAX SYSTEM......................................................................................................... 110 KOMTRAX SYSTEM DIAGRAM............................................................................................. 110 FUNCTION OF KOMTRAX SYSTEM......................................................................................... 110 CONTROL SYSTEM......................................................................................................... 111 MACHINE MONITOR.................................................................................................... 111 KOMTRAX TERMINAL................................................................................................... 114 MACHINE CONTROLLER................................................................................................. 116 FUEL ADJUSTMENT LEVER.............................................................................................. 120 HYDRAULIC SYSTEM........................................................................................................... 122 LAYOUT DRAWING OF HYDRAULIC SYSTEM..................................................................................... 122 CLSS................................................................................................................... 123 SYSTEM DIAGRAM OF CLSS............................................................................................. 123 FUNCTION OF CLSS................................................................................................... 124 HYDRAULIC SYSTEM....................................................................................................... 126 HYDRAULIC TANK..................................................................................................... 126 MAIN PUMP.......................................................................................................... 129 CONTROL VALVE...................................................................................................... 135 WORK EQUIPMENT SYSTEM...................................................................................................... 164 LAYOUT DRAWING OF WORK EQUIPMENT SYSTEM................................................................................ 164 STRUCTURE OF VALVE CONTROL............................................................................................. 167 PPC LOCK SYSTEM........................................................................................................ 169 SYSTEM DIAGRAM OF PPC LOCK SYSTEM.................................................................................. 169 FUNCTION OF PPC LOCK SYSTEM........................................................................................ 170 WORK EQUIPMENT DOUBLE LOCK SYSTEM...................................................................................... 171 FUNCTION OF WORK EQUIPMENT DOUBLE LOCK SYSTEM...................................................................... 171 OPERATION OF WORK EQUIPMENT DOUBLE LOCK SYSTEM..................................................................... 171 WORK EQUIPMENT SYSTEM.................................................................................................. 172 WORK EQUIPMENT AND SWING PPC VALVE................................................................................. 172 ATTACHMENT PPC VALVE............................................................................................... 177 BLADE PPC VALVE.................................................................................................... 179 BOOM SWING PPC VALVE............................................................................................... 181 BIPARTITE SOLENOID VALVE........................................................................................... 183 BOOM ANTI-DROP VALVE............................................................................................... 186 ARM ANTI-DROP VALVE................................................................................................ 191 PILOT CIRCUIT ACCUMULATOR.......................................................................................... 196 SWING SYSTEM............................................................................................................... 197 LAYOUT DRAWING OF SWING SYSTEM......................................................................................... 197 SWING SYSTEM........................................................................................................... 198 SWING MOTOR........................................................................................................ 198 SWING CIRCLE....................................................................................................... 209 TRAVEL SYSTEM.............................................................................................................. 211 LAYOUT DRAWING OF TRAVEL SYSTEM........................................................................................ 211 SYSTEM DIAGRAM OF TRAVEL CONTROL SYSTEM................................................................................ 213 FUNCTION OF TRAVEL CONTROL SYSTEM.................................................................................. 213 TRAVEL SYSTEM.......................................................................................................... 215 TRAVEL MOTOR....................................................................................................... 215 TRAVEL PPC VALVE................................................................................................... 229 CENTER SWIVEL JOINT................................................................................................ 231 UNDERCARRIAGE AND FRAME.................................................................................................... 232 LAYOUT DRAWING OF UNDERCARRIAGE........................................................................................ 232 SPECIFICATIONS OF UNDERCARRIAGE........................................................................................ 234 IDLER CUSHION.......................................................................................................... 235 STRUCTURE OF IDLER CUSHION......................................................................................... 235 SPECIFICATIONS OF IDLER CUSHION.................................................................................... 237 WORK EQUIPMENT............................................................................................................. 238 STRUCTURE OF WORK EQUIPMENT............................................................................................ 238 FUNCTION OF WORK EQUIPMENT............................................................................................. 239 WORK EQUIPMENT CLEARANCE ADJUSTMENT SHIM............................................................................... 240 FUNCTION OF WORK EQUIPMENT CLEARANCE ADJUSTMENT SHIM............................................................... 240 CAB RELATED PARTS.......................................................................................................... 241 ROPS CAB............................................................................................................... 241 STRUCTURE OF ROPS CAB.............................................................................................. 241 FUNCTION OF ROPS CAB............................................................................................... 241 20 STANDARD VALUE TABLE........................................................................................................ 243 CONTENTS................................................................................................................... 244 STANDARD VALUE TABLE FOR ENGINE............................................................................................ 245 STANDARD VALUE TABLE FOR ENGINE: PC24MR-5.............................................................................. 245 STANDARD VALUE TABLE FOR ENGINE: PC26MR-5.............................................................................. 247 STANDARD VALUE TABLE FOR MACHINE........................................................................................... 249 STANDARD VALUE TABLE FOR MACHINE: PC24MR-5............................................................................. 249 STANDARD VALUE TABLE FOR MACHINE: PC26MR-5............................................................................. 259 GEAR PUMP: PC24MR-5.................................................................................................... 269 PISTON PUMP: PC24MR-5.................................................................................................. 270 GEAR PUMP: PC26MR-5.................................................................................................... 271 PISTON PUMP: PC26MR-5.................................................................................................. 272 MACHINE POSTURE AND PROCEDURES TO MEASURE PERFORMANCE.................................................................. 273 30 TESTING AND ADJUSTING....................................................................................................... 277 CONTENTS................................................................................................................... 278 RELATED INFORMATION ON TESTING AND ADJUSTING............................................................................... 280 TOOLS FOR TESTING AND ADJUSTING........................................................................................ 280 ENGINE AND COOLING SYSTEM.................................................................................................. 284 TEST ENGINE SPEED...................................................................................................... 284 TEST ENGINE SPEED.................................................................................................. 284 TEST EXHAUST GAS COLOR................................................................................................. 289 TEST EXHAUST GAS COLOR BY HANDY SMOKE CHECKER...................................................................... 289 TEST EXHAUST GAS COLOR BY SMOKE METER.............................................................................. 290 CHECK AND ADJUST VALVE CLEARANCE....................................................................................... 292 TEST VALVE CLEARANCE............................................................................................... 292 ADJUST VALVE CLEARANCE............................................................................................. 295 TEST COMPRESSION PRESSURE.............................................................................................. 296 TEST COMPRESSION PRESSURE.......................................................................................... 296 TEST ENGINE OIL PRESSURE............................................................................................... 300 TEST ENGINE OIL PRESSURE........................................................................................... 300 TEST AND ADJUST FUEL INJECTION TIMING.................................................................................. 302 TEST FUEL INJECTION TIMING......................................................................................... 302 ADJUST FUEL INJECTION TIMING....................................................................................... 304 BLEED AIR FROM FUEL SYSTEM............................................................................................. 305 BLEED AIR FROM FUEL SYSTEM......................................................................................... 305 TEST FUEL SYSTEM FOR LEAKAGE........................................................................................... 306 TEST FUEL SYSTEM FOR LEAKAGE....................................................................................... 306 TEST AND ADJUST ALTERNATOR BELT TENSION................................................................................ 307 TEST AND ADJUST ALTERNATOR BELT.................................................................................... 307 POWER TRAIN................................................................................................................ 309 TEST SWING CIRCLE BEARING CLEARANCE.................................................................................... 309 TEST SWING CIRCLE BEARING CLEARANCE................................................................................ 309 UNDERCARRIAGE AND FRAME.................................................................................................... 311 TEST AND ADJUST TRACK TENSION.......................................................................................... 311 TEST TRAVEL DEVIATION.............................................................................................. 311 ADJUST TRACK TENSION............................................................................................... 311 HYDRAULIC SYSTEM........................................................................................................... 313 RELEASE PRESSURE REMAINED IN HYDRAULIC CIRCUIT......................................................................... 313 RELEASE REMAINING PRESSURE FROM HYDRAULIC TANK..................................................................... 313 RELEASE REMAINING PRESSURE IN HYDRAULIC CYLINDER CIRCUIT........................................................... 313 RELEASE REMAINING PRESSURE FROM SWING MOTOR CIRCUIT................................................................ 318 RELEASE REMAINING PRESSURE FROM TRAVEL MOTOR CIRCUIT............................................................... 319 TEST AND ADJUST OIL PRESSURE IN WORK EQUIPMENT, TRAVEL, AND BOOM SWING CIRCUITS........................................ 321 TEST OIL PRESSURE IN WORK EQUIPMENT, TRAVEL, AND BOOM SWING CIRCUITS............................................... 321 ADJUST OIL PRESSURE IN WORK EQUIPMENT, TRAVEL, AND BOOM SWING CIRCUITS............................................. 327 TEST AND ADJUST OIL PRESSURE IN SWING AND BLADE CIRCUITS............................................................... 329 TEST OIL PRESSURE IN SWING AND BLADE CIRCUITS...................................................................... 329 ADJUST OIL PRESSURE IN SWING AND BLADE CIRCUITS.................................................................... 332 TEST AND ADJUST OIL PRESSURE IN CONTROL CIRCUIT........................................................................ 334 TEST OIL PRESSURE OF CONTROL CIRCUIT............................................................................... 334 ADJUST OIL PRESSURE IN CONTROL CIRCUIT............................................................................. 335 TEST AND ADJUST OIL PRESSURE IN PUMP LS CONTROL CIRCUIT................................................................ 336 TEST LS DIFFERENTIAL PRESSURE...................................................................................... 336 ADJUST LS VALVE.................................................................................................... 338 TEST OUTLET PRESSURE IN SOLENOID VALVE................................................................................. 339 TEST OUTLET PRESSURE IN SOLENOID VALVE............................................................................. 339 TEST OUTLET PRESSURE IN PPC VALVE...................................................................................... 342 TEST OUTLET PRESSURE IN PPC VALVE.................................................................................. 342 ADJUST PLAY OF WORK EQUIPMENT AND SWING PPC VALVES..................................................................... 346 ADJUST PLAY OF WORK EQUIPMENT AND SWING PPC VALVES................................................................. 346 TEST RELEASE PRESSURE IN SWING PARKING BRAKE........................................................................... 347 TEST RELEASE PRESSURE IN SWING PARKING BRAKE....................................................................... 347 TEST TRAVEL DEVIATION.................................................................................................. 350 TEST TRAVEL DEVIATION.............................................................................................. 350 TEST THE PARTS WHICH CAUSE HYDRAULIC DRIFT OF WORK EQUIPMENT........................................................... 351 TEST PARTS CAUSING HYDRAULIC DRIFT OF BOOM CYLINDER AND BUCKET CYLINDER............................................ 351 TEST PARTS CAUSING HYDRAULIC DRIFT OF ARM CYLINDER................................................................. 352 TEST PARTS THAT CAUSE HYDRAULIC DRIFT OF PPC VALVE................................................................. 352 TEST OIL LEAKAGE....................................................................................................... 353 TEST OIL LEAKAGE FROM BOOM CYLINDER................................................................................ 353 TEST OIL LEAKAGE FROM ARM CYLINDER................................................................................. 354 TEST OIL LEAKAGE FROM BUCKET CYLINDER.............................................................................. 355 TEST OIL LEAKAGE FROM BOOM SWING CYLINDER.......................................................................... 356 TEST OIL LEAKAGE FROM BLADE CYLINDER............................................................................... 357 BLEED AIR FROM HYDRAULIC SYSTEM........................................................................................ 359 BLEED AIR FROM HYDRAULIC SYSTEM.................................................................................... 359 BLEED AIR FROM WORK EQUIPMENT CYLINDER............................................................................. 359 BLEED AIR FROM SWING MOTOR......................................................................................... 360 BLEED AIR FROM TRAVEL MOTOR........................................................................................ 360 PRESSURIZE HYDRAULIC TANK.............................................................................................. 361 PRESSURIZE HYDRAULIC TANK.......................................................................................... 361 ELECTRICAL SYSTEM.......................................................................................................... 363 START UP KOMTRAX TERMINAL.............................................................................................. 363 STOP USING OF KOMTRAX TERMINAL (MACHINE WITH KOMTRAX TERMINAL)......................................................... 367 DISPLAY OF KOMTRAX TERMINAL LAMPS...................................................................................... 369 BATTERY DISCONNECT SWITCH.............................................................................................. 372 TEST DIODES............................................................................................................ 373 TEST DIODES BY DIGITAL TESTER...................................................................................... 373 TEST DIODES BY ANALOG TESTER....................................................................................... 373 Pm-CLINIC.................................................................................................................. 374 Pm CLINIC SERVICE...................................................................................................... 374 Pm CLINIC CHECK SHEET: PC24MR-5.................................................................................... 375 Pm CLINIC CHECK SHEET: PC26MR-5.................................................................................... 381 40 TROUBLESHOOTING............................................................................................................. 387 CONTENTS................................................................................................................... 388 RELATED INFORMATION FOR TROUBLESHOOTING.................................................................................... 392 GENERAL TROUBLESHOOTING POINTS......................................................................................... 392 SEQUENCE OF EVENTS IN TROUBLESHOOTING.................................................................................. 393 CHECKS BEFORE TROUBLESHOOTING.......................................................................................... 395 INSPECTION PROCEDURE BEFORE TROUBLESHOOTING............................................................................ 397 WALK-AROUND CHECK.................................................................................................. 397 TEST IN ACCORDANCE WITH TESTING PROCEDURE.............................................................................. 398 CHECK OF FUEL LEVEL AND TYPE....................................................................................... 398 CHECK FUEL FILTER ELEMENT, DRAIN WATER AND SEDIMENT................................................................ 399 CHECK FUEL FILTER ELEMENT.......................................................................................... 400 CHECK ENGINE OIL LEVEL (OIL AMOUNT IN OIL PAN)..................................................................... 401 CHECK COOLANT LEVEL (RESERVOIR TANK)............................................................................... 402 CHECK, CLEAN AND REPLACE AIR CLEANER............................................................................... 404 CHECK HYDRAULIC OIL LEVEL.......................................................................................... 408 CHECK HYDRAULIC OIL STRAINER....................................................................................... 410 CHECK HYDRAULIC OIL FILTER......................................................................................... 412 CHECK OF OIL LEVEL IN FINAL DRIVE CASE: PC24MR-5................................................................... 414 CHECK OF OIL LEVEL IN FINAL DRIVE CASE: PC26MR-5................................................................... 414 BLEED AIR FROM FUEL SYSTEM......................................................................................... 415 BLEED AIR FROM HYDRAULIC SYSTEM.................................................................................... 415 CHECK ELECTRIC EQUIPMENT........................................................................................... 415 PREPARATION TO TROUBLESHOOT ELECTRICAL SYSTEM.......................................................................... 425 CONNECT ADAPTER FOR TROUBLESHOOTING MACHINE MONITOR................................................................ 425 CONNECT ADAPTER FOR TROUBLESHOOTING OF MACHINE CONTROLLER.......................................................... 426 CONNECT ADAPTER FOR TROUBLESHOOTING KOMTRAX TERMINAL............................................................... 427 PROCEDURE FOR TROUBLESHOOTING.......................................................................................... 428 SYMPTOM AND TROUBLESHOOTING NUMBERS.................................................................................... 429 INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE......................................................................... 433 CONNECTOR LIST AND LAYOUT (CANOPY SPECIFICATION)....................................................................... 435 CONNECTOR LIST AND LAYOUT (CAB SPECIFICATION).......................................................................... 441 CONNECTOR CONTACT IDENTIFICATION....................................................................................... 449 T-BRANCH BOX AND T-BRANCH ADAPTER TABLE................................................................................ 491 FUSE LOCATION TABLE.................................................................................................... 497 TABLE OF FAILURE CODE AND USER CODE.................................................................................... 499 TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE).......................................................................... 501 USER CODE [EOE]........................................................................................................ 501 FAILURE CODE [6AZ0ZG].................................................................................................. 504 FAILURE CODE [DBH0MC].................................................................................................. 505 FAILURE CODE [DBH2KK].................................................................................................. 506 FAILURE CODE [DBH5KP].................................................................................................. 510 FAILURE CODE [DBHLKA].................................................................................................. 514 FAILURE CODE [DBHLKB].................................................................................................. 516 FAILURE CODE [DDWLKA].................................................................................................. 517 FAILURE CODE [DDWLKB].................................................................................................. 520 FAILURE CODE [DFB1KZ].................................................................................................. 522 FAILURE CODE [DFB2KZ].................................................................................................. 525 FAILURE CODE [DFB3L8].................................................................................................. 529 FAILURE CODE [DFB4L8].................................................................................................. 532 FAILURE CODE [DFB5KZ].................................................................................................. 536 FAILURE CODE [DFB6KZ].................................................................................................. 539 FAILURE CODE [DV50KB].................................................................................................. 543 FAILURE CODE [DV50KY].................................................................................................. 546 FAILURE CODE [DXE7KA].................................................................................................. 549 FAILURE CODE [DXE7KB].................................................................................................. 552 FAILURE CODE [DXE7KY].................................................................................................. 555 FAILURE CODE [DXE8KA].................................................................................................. 558 FAILURE CODE [DXE8KB].................................................................................................. 561 FAILURE CODE [DXE8KY].................................................................................................. 564 FAILURE CODE [DXE9KA].................................................................................................. 567 FAILURE CODE [DXE9KB].................................................................................................. 570 FAILURE CODE [DXE9KY].................................................................................................. 573 FAILURE CODE [DXEAKA].................................................................................................. 576 FAILURE CODE [DXEAKB].................................................................................................. 579 FAILURE CODE [DXEAKY].................................................................................................. 582 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE).............................................................................. 585 ENGINE DOES NOT START (ENGINE DOES NOT CRANK) (Cab).................................................................... 585 ENGINE DOES NOT START (ENGINE DOES NOT CRANK) (Canopy)................................................................. 591 ENGINE DOES NOT START (FUEL FEED PUMP SYSTEM).......................................................................... 598 PREHEATING SYSTEM DOES NOT OPERATE..................................................................................... 601 WHEN YOU TURN STARTING SWITCH TO ON POSITION, ALL ITEMS OF MACHINE MONITOR DO NOT WORK, OR ONE OF ITEMS DO NOT WORK.... 603 CHARGE LEVEL CAUTION LAMP LIGHTS UP WHILE ENGINE IS IN OPERATION....................................................... 606 FUEL LEVEL MONITOR PILOT LAMP LIGHTS UP WHILE ENGINE IS IN OPERATION................................................... 608 ENGINE COOLANT TEMPERATURE MONITOR PILOT LAMP LIGHTS UP WHILE ENGINE IS IN OPERATION................................... 609 ENGINE OIL PRESSURE CAUTION LAMP LIGHTS UP WHILE ENGINE IS IN OPERATION................................................ 610 FUEL GAUGE DOES NOT MOVE FROM MINIMUM OR MAXIMUM....................................................................... 611 FUEL GAUGE DOES NOT SHOW ACTUAL FUEL LEVEL............................................................................. 613 COOLANT TEMPERATURE GAUGE DOES NOT MOVE FROM MINIMUM OR MAXIMUM........................................................ 615 COOLANT TEMPERATURE GAUGE DOES NOT SHOW CORRECT TEMPERATURE............................................................ 617 TRAVEL SPEED DOES NOT CHANGE EVEN WHEN YOU OPERATE THE OPERATION TO CHANGE TRAVEL SPEED................................ 618 TRAVEL ALARM DOES NOT MAKE SOUND (Cab)................................................................................. 623 TRAVEL ALARM DOES NOT MAKE SOUND (Canopy).............................................................................. 626 TRAVEL ALARM DOES NOT STOP WHEN MACHINE STOPS.......................................................................... 629 ALARM BUZZER DOES NOT MAKE SOUND....................................................................................... 632 ALARM BUZZER DOES NOT STOP WHEN MACHINE STOPS.......................................................................... 636 SERVICE METER IS NOT SHOWN WHILE STARTING SWITCH IS IN OFF POSITION.................................................... 639 SERVICE METER DOES NOT OPERATE WHILE ENGINE IS IN OPERATION............................................................ 640 ALL WORK EQUIPMENT, SWING, TRAVEL DO NOT OPERATE (Cab)................................................................. 641 ALL WORK EQUIPMENT, SWING, TRAVEL DO NOT OPERATE (Canopy).............................................................. 646 ALL WORK EQUIPMENT, SWING, TRAVEL CANNOT BE LOCKED (Cab)............................................................... 651 ALL WORK EQUIPMENT, SWING, TRAVEL CANNOT BE LOCKED (Canopy)............................................................ 654 HORN DOES NOT MAKE SOUND............................................................................................... 657 HORN DOES NOT STOP..................................................................................................... 660 WORKING LAMP DOES NOT LIGHT UP (Cab)................................................................................... 663 WORKING LAMP DOES NOT LIGHT UP (Canopy)................................................................................ 665 BEACON LAMP DOES NOT LIGHT UP (Cab).................................................................................... 667 BEACON LAMP DOES NOT LIGHT UP (Canopy)................................................................................. 669 KOMTRAX SYSTEM DOES NOT OPERATE CORRECTLY.............................................................................. 671 TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE).............................................................. 672 INFORMATION SHOWN IN TROUBLESHOOTING TABLE (H-MODE).................................................................... 672 ALL WORK EQUIPMENT, TRAVEL, SWING, BLADE DO NOT OPERATE................................................................ 673 All work equipment or travel does not operate.......................................................................... 674 TRAVEL AND BLADE DO NOT OPERATE........................................................................................ 675 SWING AND BLADE DO NOT OPERATE......................................................................................... 676 ALL WORK EQUIPMENT, TRAVEL, SWING, BLADE SPEED IS LOW OR POWER IS LOW.................................................. 677 ALL WORK EQUIPMENT AND TRAVEL SPEED IS LOW OR POWER IS LOW............................................................. 678 TRAVEL AND BLADE SPEED IS LOW OR POWER IS LOW.......................................................................... 679 SWING AND BLADE SPEED OR POWER IS LOW.................................................................................. 680 FINE CONTROL PERFORMANCE OR RESPONSE IS UNSATISFACTORY................................................................. 681 THERE IS AN UNUSUAL NOISE FROM AROUND MAIN PUMP........................................................................ 682 ENGINE SPEED FALLS LARGELY OR ENGINE STOPS............................................................................. 683 ALL WORK EQUIPMENT SPEED OR POWER IS LOW............................................................................... 684 ALL WORK EQUIPMENT AND BLADE SPEED IS LOW OR POWER IS LOW.............................................................. 685 BLADE DOES NOT OPERATE................................................................................................. 686 ALL WORK EQUIPMENT DO NOT OPERATE...................................................................................... 687 ALL WORK EQUIPMENT AND BLADE DO NOT OPERATE............................................................................ 688 BOOM SPEED OR POWER IS LOW............................................................................................. 689 ARM SPEED IS LOW OR POWER IS LOW....................................................................................... 691 BUCKET SPEED OR POWER IS LOW........................................................................................... 692 BLADE SPEED IS LOW OR POWER IS LOW..................................................................................... 693 BOOM SWING SPEED IS LOW OR POWER IS LOW................................................................................ 695 WORK EQUIPMENT DOES NOT MOVE IN SINGLE OPERATION....................................................................... 696 HYDRAULIC DRIFT OF BOOM IS LARGE....................................................................................... 698 HYDRAULIC DRIFT OF ARM IS LARGE........................................................................................ 699 HYDRAULIC DRIFT OF BUCKET IS LARGE..................................................................................... 700 HYDRAULIC DRIFT OF BLADE IS LARGE...................................................................................... 701 TIME LAG OF WORK EQUIPMENT IS LARGE.................................................................................... 702 IN COMBINED OPERATION OF WORK EQUIPMENT, WORK EQUIPMENT WITH HEAVIER LOAD MOVES SLOWER................................. 703 MACHINE DOES NOT TRAVEL STRAIGHT....................................................................................... 704 MACHINE DOES NOT MOVE OFF STRAIGHT..................................................................................... 706 MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW................................................................... 707 TRAVEL SPEED IS SLOW................................................................................................... 709 ONE OF TRACKS DOES NOT RUN............................................................................................. 711 TRAVEL SPEED DOES NOT CHANGE, OR TRAVEL SPEED IS TOO SLOW OR FAST...................................................... 712 MACHINE DOES NOT SWING TO RIGHT OR LEFT................................................................................ 713 SWINGS ONLY IN ONE DIRECTION........................................................................................... 715 SWING ACCELERATION OR SWING SPEED IS LOW IN TWO DIRECTIONS OF RIGHT AND LEFT........................................... 717 SWING ACCELERATION OR SWING SPEED IS LOW IN ONLY ONE DIRECTION......................................................... 719 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWING OPERATION (RIGHT AND LEFT).................................... 720 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWING OPERATION (ONLY ONE DIRECTION)................................ 721 SHOCK IS LARGE WHEN UPPER STRUCTURE STOPS SWING OPERATION.............................................................. 722 THERE IS A LARGE UNUSUAL NOISE WHEN UPPER STRUCTURE STOPS SWING OPERATION.............................................. 723 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS APPLIED)................................................. 724 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS RELEASED)................................................ 725 TROUBLESHOOTING OF ENGINE (S-MODE)......................................................................................... 726 INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE (S-MODE)................................................................ 726 ENGINE DOES NOT CRANK WHEN STARTING SWITCH IS TURNED TO START POSITION................................................. 727 ENGINE CRANKS BUT NO EXHAUST SMOKE COMES OUT........................................................................... 728 FUEL IS INJECTED BUT ENGINE DOES NOT START (MISFIRING: ENGINE CRANKS BUT DOES NOT START)............................... 729 ENGINE STARTABILITY IS UNSATISFACTORY.................................................................................. 730 ENGINE DOES NOT PICK UP SMOOTHLY....................................................................................... 732 ENGINE STOPS DURING OPERATION.......................................................................................... 733 ENGINE RUNNING IS NOT STABLE........................................................................................... 735 OUTPUT POWER IS LOW (POWER IS LOW)..................................................................................... 736 ENGINE OIL CONSUMPTION IS EXCESSIVE.................................................................................... 738 ENGINE OIL BECOMES CONTAMINATED QUICKLY................................................................................ 739 FUEL CONSUMPTION IS EXCESSIVE.......................................................................................... 740 OIL MIXES INTO COOLANT (OR SPURTS BACK, COOLANT LEVEL FALLS)........................................................... 741 ENGINE OIL PRESSURE FALLS.............................................................................................. 742 FUEL MIXES INTO ENGINE OIL............................................................................................. 743 WATER MIXES INTO ENGINE OIL (MILKY).................................................................................... 744 COOLANT TEMPERATURE RISES TOO HIGH (OVERHEAT).......................................................................... 745 THERE IS AN UNUSUAL NOISE.............................................................................................. 746 VIBRATION IS EXCESSIVE................................................................................................. 747 AIR CANNOT BE BLED FROM FUEL CIRCUIT................................................................................... 748 50 DISASSEMBLY AND ASSEMBLY.................................................................................................... 749 CONTENTS................................................................................................................... 750 RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY............................................................................ 753 HOW TO READ THIS MANUAL................................................................................................ 753 COATING MATERIALS LIST..................................................................................................... 755 SPECIAL TOOLS LIST......................................................................................................... 760 ENGINE AND COOLING SYSTEM.................................................................................................. 763 DRAIN AND ADD COOLANT.................................................................................................. 763 DRAIN COOLANT...................................................................................................... 763 ADD COOLANT........................................................................................................ 764 DRAIN AND ADD HYDRAULIC OIL............................................................................................ 765 DRAIN HYDRAULIC OIL................................................................................................ 765 ADD HYDRAULIC OIL.................................................................................................. 766 REMOVE AND INSTALL RADIATOR ASSEMBLY................................................................................... 768 REMOVE RADIATOR ASSEMBLY........................................................................................... 768 INSTALL RADIATOR ASSEMBLY.......................................................................................... 771 REMOVE AND INSTALL HYDRAULIC OIL COOLER ASSEMBLY....................................................................... 774 REMOVE HYDRAULIC OIL COOLER ASSEMBLY............................................................................... 774 INSTALL HYDRAULIC OIL COOLER ASSEMBLY.............................................................................. 779 REMOVE AND INSTALL ENGINE AND MAIN PUMP ASSEMBLY....................................................................... 784 REMOVE ENGINE AND MAIN PUMP ASSEMBLY............................................................................... 785 INSTALL ENGINE AND MAIN PUMP ASSEMBLY.............................................................................. 792 REMOVE AND INSTALL FUEL TANK ASSEMBLY.................................................................................. 800 REMOVE FUEL TANK ASSEMBLY.......................................................................................... 800 INSTALL FUEL TANK ASSEMBLY......................................................................................... 802 POWER TRAIN................................................................................................................ 805 REMOVE AND INSTALL TRAVEL MOTOR ASSEMBLY (PC24MR-5).................................................................... 805 REMOVE TRAVEL MOTOR ASSEMBLY (PC24MR-5)............................................................................ 805 INSTALL TRAVEL MOTOR ASSEMBLY (PC24MR-5)........................................................................... 807 REMOVE AND INSTALL TRAVEL MOTOR ASSEMBLY (PC26MR-5).................................................................... 809 REMOVE TRAVEL MOTOR ASSEMBLY (PC26MR-5)............................................................................ 809 INSTALL TRAVEL MOTOR ASSEMBLY (PC26MR-5)........................................................................... 811 REMOVE AND INSTALL SWING MOTOR ASSEMBLY................................................................................ 813 REMOVE SWING MOTOR ASSEMBLY........................................................................................ 813 INSTALL SWING MOTOR ASSEMBLY....................................................................................... 814 REMOVE AND INSTALL SWING CIRCLE ASSEMBLY............................................................................... 815 REMOVE SWING CIRCLE ASSEMBLY....................................................................................... 815 INSTALL SWING CIRCLE ASSEMBLY...................................................................................... 816 UNDERCARRIAGE AND FRAME.................................................................................................... 817 DISASSEMBLE AND ASSEMBLE RECOIL SPRING ASSEMBLY........................................................................ 817 DISASSEMBLE RECOIL SPRING ASSEMBLY (PC24MR-5)...................................................................... 818 DISASSEMBLE RECOIL SPRING ASSEMBLY (PC26MR-5)...................................................................... 819 ASSEMBLE RECOIL SPRING ASSEMBLY (PC24MR-5)......................................................................... 821 ASSEMBLE RECOIL SPRING ASSEMBLY (PC26MR-5)......................................................................... 822 REMOVE AND INSTALL TRACK ASSEMBLY...................................................................................... 825 REMOVE TRACK ASSEMBLY.............................................................................................. 825 INSTALL TRACK ASSEMBLY............................................................................................. 826 DISASSEMBLE AND ASSEMBLE IDLER ASSEMBLY................................................................................ 827 DISASSEMBLE IDLER ASSEMBLY (PC24MR-5).............................................................................. 827 DISASSEMBLE IDLER ASSEMBLY (PC26MR-5).............................................................................. 828 ASSEMBLE IDLER ASSEMBLY (PC24MR-5)................................................................................. 830 ASSEMBLE IDLER ASSEMBLY (PC26MR-5)................................................................................. 831 DISASSEMBLE AND ASSEMBLE TRACK ROLLER ASSEMBLY......................................................................... 833 DISASSEMBLE TRACK ROLLER ASSEMBLY.................................................................................. 833 ASSEMBLE TRACK ROLLER ASSEMBLY..................................................................................... 833 REMOVE AND INSTALL REVOLVING FRAME ASSEMBLY............................................................................ 835 REMOVE REVOLVING FRAME ASSEMBLY.................................................................................... 835 INSTALL REVOLVING FRAME ASSEMBLY................................................................................... 837 REMOVE AND INSTALL COUNTERWEIGHT ASSEMBLY.............................................................................. 839 REMOVE COUNTERWEIGHT ASSEMBLY...................................................................................... 839 INSTALL COUNTERWEIGHT ASSEMBLY..................................................................................... 841 HYDRAULIC SYSTEM........................................................................................................... 843 REMOVE AND INSTALL CENTER SWIVEL JOINT ASSEMBLY (PC24MR-5)............................................................. 843 REMOVE CENTER SWIVEL JOINT ASSEMBLY (PC24MR-5)..................................................................... 843 INSTALL CENTER SWIVEL JOINT ASSEMBLY (PC24MR-5).................................................................... 846 REMOVE AND INSTALL CENTER SWIVEL JOINT ASSEMBLY (PC26MR-5)............................................................. 849 REMOVE CENTER SWIVEL JOINT ASSEMBLY (PC26MR-5)..................................................................... 849 INSTALL CENTER SWIVEL JOINT ASSEMBLY (PC26MR-5).................................................................... 852 REMOVE AND INSTALL HYDRAULIC TANK ASSEMBLY (CANOPY SPECIFICATION)...................................................... 855 REMOVE HYDRAULIC TANK ASSEMBLY (CANOPY SPECIFICATION).............................................................. 855 INSTALL HYDRAULIC TANK ASSEMBLY (CANOPY SPECIFICATION)............................................................. 858 REMOVE AND INSTALL HYDRAULIC TANK ASSEMBLY (CAB SPECIFICATION)......................................................... 861 REMOVE HYDRAULIC TANK ASSEMBLY (CAB SPECIFICATION)................................................................. 861 INSTALL HYDRAULIC TANK ASSEMBLY (CAB SPECIFICATION)................................................................ 863 REMOVE AND INSTALL MAIN PUMP ASSEMBLY.................................................................................. 865 REMOVE MAIN PUMP ASSEMBLY.......................................................................................... 865 INSTALL MAIN PUMP ASSEMBLY......................................................................................... 867 WORK EQUIPMENT............................................................................................................. 868 REMOVE AND INSTALL BLADE ASSEMBLY...................................................................................... 868 REMOVE BLADE ASSEMBLY.............................................................................................. 868 INSTALL BLADE ASSEMBLY............................................................................................. 869 REMOVE AND INSTALL WORK EQUIPMENT ASSEMBLY............................................................................. 871 REMOVE WORK EQUIPMENT ASSEMBLY..................................................................................... 871 INSTALL WORK EQUIPMENT ASSEMBLY.................................................................................... 873 REMOVE AND INSTALL BOOM ANTI-DROP VALVE ASSEMBLY....................................................................... 875 REMOVE BOOM ANTI-DROP VALVE ASSEMBLY............................................................................... 876 INSTALL BOOM ANTI-DROP VALVE ASSEMBLY.............................................................................. 878 REMOVE AND INSTALL ARM ANTI-DROP VALVE ASSEMBLY........................................................................ 879 REMOVE ARM ANTI-DROP VALVE ASSEMBLY................................................................................ 880 INSTALL ARM ANTI-DROP VALVE ASSEMBLY............................................................................... 882 DISASSEMBLE AND ASSEMBLE ANTI-DROP VALVE ASSEMBLY...................................................................... 884 DISASSEMBLE ANTI-DROP VALVE ASSEMBLY............................................................................... 884 ASSEMBLE ANTI-DROP VALVE ASSEMBLY.................................................................................. 884 DISASSEMBLE AND ASSEMBLE WORK EQUIPMENT CYLINDER ASSEMBLY.............................................................. 885 DISASSEMBLE WORK EQUIPMENT CYLINDER ASSEMBLY....................................................................... 886 ASSEMBLE WORK EQUIPMENT CYLINDER ASSEMBLY.......................................................................... 889 CAB RELATED PARTS.......................................................................................................... 894 REMOVE AND INSTALL OPERATOR CAB ASSEMBLY (CAB SPECIFICATION)........................................................... 894 REMOVE OPERATOR CAB ASSEMBLY (CAB SPECIFICATION)................................................................... 894 INSTALL OPERATOR CAB ASSEMBLY (CAB SPECIFICATION).................................................................. 900 REMOVE AND INSTALL FLOOR FRAME ASSEMBLY (CANOPY SPECIFICATION)......................................................... 906 REMOVE FLOOR FRAME ASSEMBLY (CANOPY SPECIFICATION)................................................................. 906 INSTALL FLOOR FRAME ASSEMBLY (CANOPY SPECIFICATION)................................................................ 912 REMOVE AND INSTALL OPERATOR CAB GLASS (ADHERED GLASS).................................................................. 919 REMOVE OPERATOR CAB GLASS (ADHERED GLASS).......................................................................... 920 INSTALL OPERATOR CAB GLASS (ADHERED GLASS)......................................................................... 921 REMOVE AND INSTALL FRONT WINDOW ASSEMBLY............................................................................... 929 REMOVE FRONT WINDOW ASSEMBLY....................................................................................... 929 INSTALL FRONT WINDOW ASSEMBLY...................................................................................... 931 REMOVE AND INSTALL OPERATOR'S SEAT..................................................................................... 932 REMOVE OPERATOR'S SEAT............................................................................................. 932 INSTALL OPERATOR'S SEAT............................................................................................ 933 REMOVE AND INSTALL SEATBELT............................................................................................ 934 REMOVE SEATBELT.................................................................................................... 934 INSTALL SEATBELT................................................................................................... 935 ELECTRICAL SYSTEM.......................................................................................................... 936 REMOVE AND INSTALL MACHINE CONTROLLER ASSEMBLY......................................................................... 936 REMOVE MACHINE CONTROLLER ASSEMBLY................................................................................. 936 INSTALL MACHINE CONTROLLER ASSEMBLY................................................................................ 939 REMOVE AND INSTALL MACHINE MONITOR ASSEMBLY............................................................................ 942 REMOVE MACHINE MONITOR ASSEMBLY.................................................................................... 942 INSTALL MACHINE MONITOR ASSEMBLY................................................................................... 944 REMOVE AND INSTALL KOMTRAX TERMINAL ASSEMBLY........................................................................... 946 REMOVE KOMTRAX TERMINAL ASSEMBLY................................................................................... 946 INSTALL KOMTRAX TERMINAL ASSEMBLY.................................................................................. 948 60 MAINTENANCE STANDARD........................................................................................................ 951 CONTENTS................................................................................................................... 952 EXPLANATION OF TERMS FOR MAINTENANCE STANDARD.............................................................................. 953 ENGINE AND COOLING SYSTEM.................................................................................................. 955 MAINTENANCE STANDARD OF ENGINE MOUNT................................................................................... 955 MAINTENANCE STANDARD OF PTO............................................................................................ 956 MAINTENANCE STANDARD OF COOLING SYSTEM................................................................................. 957 POWER TRAIN................................................................................................................ 958 MAINTENANCE STANDARD OF SWING CIRCLE................................................................................... 958 MAINTENANCE STANDARD OF SPROCKET....................................................................................... 959 UNDERCARRIAGE AND FRAME.................................................................................................... 961 MAINTENANCE STANDARD OF TRACK FRAME AND IDLER CUSHION.................................................................. 961 MAINTENANCE STANDARD OF IDLER.......................................................................................... 965 MAINTENANCE STANDARD OF TRACK ROLLER................................................................................... 969 MAINTENANCE STANDARD OF TRACK SHOE..................................................................................... 971 MAINTENANCE STANDARD OF DOUBLE SHOE.................................................................................... 973 MAINTENANCE STANDARD OF RUBBER SHOE.................................................................................... 974 HYDRAULIC SYSTEM........................................................................................................... 976 MAINTENANCE STANDARD OF HYDRAULIC TANK................................................................................. 976 MAINTENANCE STANDARD OF MAIN PUMP...................................................................................... 977 MAINTENANCE STANDARD OF SWING MOTOR.................................................................................... 978 MAINTENANCE STANDARD OF TRAVEL MOTOR................................................................................... 979 MAINTENANCE STANDARD OF CONTROL VALVE.................................................................................. 982 MAINTENANCE STANDARD OF ANTI-DROP VALVE OF BOOM........................................................................ 992 MAINTENANCE STANDARD OF ANTI-DROP VALVE OF ARM......................................................................... 994 MAINTENANCE STANDARD OF WORK EQUIPMENT AND SWING PPC VALVE............................................................. 996 MAINTENANCE STANDARD OF BLADE PPC VALVE................................................................................ 999 MAINTENANCE STANDARD OF BOOM SWING PPC VALVE...........................................................................1001 MAINTENANCE STANDARD OF TRAVEL PPC VALVE...............................................................................1003 MAINTENANCE STANDARD OF ATTACHMENT PPC VALVE...........................................................................1006 MAINTENANCE STANDARD OF CENTER SWIVEL JOINT............................................................................1008 WORK EQUIPMENT.............................................................................................................1009 MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE.........................................................................1009 DIMENSIONS OF ARM......................................................................................................1021 DIMENSIONS OF BUCKET...................................................................................................1023 MAINTENANCE STANDARD OF BOOM CYLINDER..................................................................................1024 MAINTENANCE STANDARD OF ARM CYLINDER...................................................................................1025 MAINTENANCE STANDARD OF BUCKET CYLINDER................................................................................1026 MAINTENANCE STANDARD OF BLADE CYLINDER.................................................................................1027 MAINTENANCE STANDARD OF BOOM SWING CYLINDER............................................................................1028 90 CIRCUIT DIAGRAMS............................................................................................................1029 CONTENTS...................................................................................................................1030 HOW TO READ THE CODES FOR ELECTRIC CABLE...................................................................................1031 HYDRAULIC CIRCUIT DIAGRAM..................................................................................................1035 SYMBOLS USED IN HYDRAULIC CIRCUIT DIAGRAM..............................................................................1035 HYDRAULIC CIRCUIT DIAGRAM (1/3)........................................................................................1039 HYDRAULIC CIRCUIT DIAGRAM (2/3)........................................................................................1041 HYDRAULIC CIRCUIT DIAGRAM (3/3)........................................................................................1043 HYDRAULIC CIRCUIT DIAGRAM (AT BOOM RAISE OPERATION)....................................................................1045 HYDRAULIC CIRCUIT DIAGRAM (AT LEFT SWING OPERATION)....................................................................1047 HYDRAULIC CIRCUIT DIAGRAM (AT BOOM RAISE AND LEFT SWING OPERATION).....................................................1049 ELECTRICAL CIRCUIT DIAGRAM.................................................................................................1051 SYMBOLS USED IN ELECTRIC CIRCUIT DIAGRAM...............................................................................1051 ELECTRICAL CIRCUIT DIAGRAM (CANOPY SPECIFICATION) (1/3)................................................................1055 ELECTRICAL CIRCUIT DIAGRAM (CANOPY SPECIFICATION) (2/3)................................................................1057 ELECTRICAL CIRCUIT DIAGRAM (CANOPY SPECIFICATION) (3/3)................................................................1059 ELECTRICAL CIRCUIT DIAGRAM (CAB SPECIFICATION) (1/4)...................................................................1061 ELECTRICAL CIRCUIT DIAGRAM (CAB SPECIFICATION) (2/4)...................................................................1063 ELECTRICAL CIRCUIT DIAGRAM (CAB SPECIFICATION) (3/4)...................................................................1065 ELECTRICAL CIRCUIT DIAGRAM (CAB SPECIFICATION) (4/4)...................................................................1067 INDEX...........................................................................................................................1069
DESCRIPTION:
KOMATSU PC24MR-5 PC26MR-5 COMPACT HYDRAULIC EXCAVATOR SHOP MANUAL WENBM00380 – PDF DOWNLOAD
Composition of the shop manual
This shop manual contains technical information necessary to perform services in workshops. It is divided into the following chapters for the ease of use.
00 INDEX AND FOREWORD
This section describes the index, foreword, safety, and basic information.
01 SPECIFICATIONS
This section describes the specifications of the machine.
10 STRUCTURE AND FUNCTION
This section describes the structure and operation of each component with respect to each system. “STRUCTURE AND FUNCTION” is helpful in not only understanding the structure of each component but performing troubleshooting.
20 STANDARD VALUE TABLE
This section describes the standard values for new machine and failure criteria for testing and adjusting, and troubleshooting. Use the standard values table to check the standard values for testing and adjusting, and judge troubles in troubleshooting.
30 TESTING AND ADJUSTING
This section describes the measuring tools and measuring methods for testing and adjusting as well as the adjusting method of each part. The standard values and repair limit for TESTING AND ADJUSTING are described in “STANDARD VALUE TABLE”.
40 TROUBLESHOOTING
This section describes troubleshooting of failure part and its remedy method on the occurrence of the failure. Descriptions of troubleshooting are sorted by failure mode.
50 DISASSEMBLY AND ASSEMBLY
This section describes the special tools, work procedures, and safety precautions necessary for removal, installation, disassembly, and assembly of the components and parts. In addition, tightening torques, quantity, and weight of the coating materials, lubricants, and coolant necessary to these works are shown.
60 MAINTENANCE STANDARD
This section describes the maintenance standard value of each component. The maintenance standard shows the criteria and remedies for disassembly and assembly.
80 THE OTHER INFORMATION
This section describes the structure and function, testing and adjusting, and troubleshooting for all of the other components or equipment which cannot be separately classified in the appendix.
90 Circuit diagrams
This section describes hydraulic circuit diagrams and electrical circuit diagrams.
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